SAC (Simple API for CSS) is an event-based API much like SAX for XML. If you are familiar with the latter, you should have little trouble getting used to SAC. More information on SAC can be found online at http://www.w3.org/TR/SAC. CSS having more constructs than XML, core SAC is still more complex than core SAX. However, if you need to parse a CSS style sheet, SAC probably remains the easiest way to get it done. WWW: https://metacpan.org/release/CSS-SAC